Winding machine



n INVENTOR. i

ATTORNEYS Patented Oct. 27, 1936 UNITED S'i'ATS PATENT @F5165 WINDING MACHINE Application December 10, 1935, Serial No. 53,699

12 Claims.

It has been found that where winding machines of the type to which my present invention is directed are run at the high speeds demanded by the trade, the yarn tension device of each winding unit is caused to vibrate excessively due to the high speed of the yarn traversing package driving roll commonly called' the cam roll. This vibration causes the jumping of the tension washers, between which washers the yarn passes on its way to the cam roll, thereby producing an uneven tension on` the yarn and the consequent imperfect winding of the package.

The object of my invention is to prevent this uneven tension on the yarn by interposing a vib-ration dampener or absorber between the cam roll and the tension device to eliminate as far as possible the jumping of the tension washers above referred to.

My invention more particularly includes a bracket for rotatably mounting the cam roll, which bracket is fixedly mounted' on one of the longitudinally disposed frame rails and a bracket which carries the tension device, which bracket is pivotally connected to said rail; a vibration dampener or absorber being interposed between the rail and the tension bracket, which vibration dampener or absorber resiliently supports the bracket.

A practical embodiment of my invention is represented in the accompanying drawing, in Which- Fig. l represents a vertical cross section through the winding machine showing one of the winding units in end elevation with one form of my tension vibration dampener applied thereto;

Fig. 2 represents a detail vertical longitudinal section through the tension vibration dampener, taken in the plane of the line II-II of Fig. 1, looking in the direction of the arrows;

Fig. 3 represents a detail end view of another form of tension vibration dampener; and

Fig. 4 represents a detail vertical longitudinal section taken in the plane of the line IV-IV of Fig. 3, looking in the direction of the arrows.

The longitudinally disposed frame rail is denoted by i and on the said rail are xedly mounted the brackets 2 (one only of which is shown herein) which rotatably support the shaft 3 of the cam roll 4. This shaft 3 is driven` at the desired speed from any suitable source of power not shown herein.

The package core 5, in the present instance a cone, is carried by a spindle 6 projecting from the swinging package holder 1 which is mounted on the longitudinally disposed shaft 8 as is usual.l

The tension device is herein shown as comprising upper and lower coacting washers 9 and i0, the upper washer being suiicently weighted to exert the desired' tension on the yarn as it passes through the tension device.

The bracket ii which carries the tension device is pivotally connected to the frame rail l by providing the inner end of the bracket with uprising ears i2 which are pivoted on a pin i3 projecting laterally from a bracket plate I4 clamped to the under side of the rail l by means of a bolt t5 and the nut it threaded thereon.

The screw threaded portion of the bolt l5 extends downwardly beyond the nut i@ through a slot il in the bracket i i and forms a part of the vibration dampener for the tension device, the other part of the tension device being a resilient means located between the bottom of the bracket l l and a nut I8 threaded on the bolt l5.

In Figs. 1 and 2 this resilient means is shown as felt annular pads i9 interposed between upper and lower washers 2i) and 2l on the bolt l5, the upper washer bearing against the bottom surface of the bracket il and the lower washer bearing against the top surface of the nut i8. In Figs. 3 and 4 the resilient means is shown as a coil spring 22 interposed between the said upper and lower washers 2U and 2i. In both forms the height of the tension device with respect to the cam roll can be regulated by manipulating the nut I8. A lock nut 23 may be threaded on the bolt l5 for locking the nut I3 in its adjusted position.

The bracket i l is shown as provided with a depending arm 2li which acts as a support for the bobbin 25 from which the yarn is led through the tension device, the drop Wire 26 and under the control rod 21 to the cam roll 4.

From the above description it will be seen that the vibration incident to the running of the cam roll at high speeds will be practically absorbed before it reaches the tension device, thereby preventing the jumping of the tension washers and the consequent uneveness in the yarn tension.

It is evident that various changes may be resorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of my invention, and hence I do not intend to be limited to the particular embodiment herein shown and described, but- What I claim is:

l. In a package winding machine, a cam. roll, a support therefor, a tension device, a support therefor and a vibration dampener independent of the tension device and located between the support for the cam roll and the support for the tension device.

2. In a package winding machine, a cam roll, a support therefor, a tension device, a support therefor, a vibration dampener for the tension device located between the support for the cam roll and the support for the tension device and means for adjusting the height of the tension device with respect to the cam roll.

3. In a package winding machine, a cam roll, a support therefor, a tension device, a support therefor, a vibration dampener for the tension device located between the support for the cam roll and the support for the tension device and means acting through the vibration dampener for adjusting the height of the tension device with respect to the cam roll.

4. In a package winding machine, a cam roll, a xed supporting bracket therefor, a tension device, a movable supporting bracket therefor and a vibration dampener independent of the tension device and located between the support for the cam roll and the support for the tension device.

5. In a package winding machine, a cam roll, a fixed supporting bracket therefor, a tension device, a movable supporting bracket therefor, a vibration dampener for the tension device located between the support for the cam roll and the support for the tension device and means for adjusting the height of the tension device with respect to the cam roll.

6. In a package winding machine, a cam roll, a xed supporting bracket therefor, a tension device, a movable supporting bracket therefor, a vibration dampener for the tension device located between the support for the carn roll and the support for the tension device and means acting through the vibration dampener for adjusting the height of the tension device with respect to the carn roll.

7. In a package winding machine, a rail, a cam roll, a supporting bracket therefor fixedly mounted on the rail, a tension device, a supporting bracket therefor movably connected to the rail and a vibration dampener for the tension device located between the rail and tension device bracket.

8. In a package winding machine, a rail, a cam roll, a supporting bracket therefor xedly mounted on the rail, a tension device, a supporting bracket therefor pivotally connected to the rail and a vibration dampener for the tension device located between the rail and tension device bracket.

9. In a package winding machine, a rail, a cam roll, a supporting bracket therefor Xedly mounted on the rail, a tension device, a supporting bracket therefor movably connected to the rail and a vibration dampener for the tension device comprising a resilient support for the tension de vice bracket, carried by the rail.

10. In a package winding machine, a rail, a cam roll, a supporting bracket therefor xedly mounted on the rail, a tension device, a supporting bracket therefor pivotally connected to the rail and a vibration dampener for the tension device comprising a resilient support for the tension device bracket, carried by the rail.

1l. In a package winding machine, a rail, a cam roll, a supporting bracket therefor xedly mounted on the rail, a tension device, a supporting bracket therefor pivotally connected to the rail, a bolt carried by the rail and extending downwardly through the tension device bracket, a nut on said bolt and a resilient means interposed between the bracket and nut, acting as a vibration dampener for the tension device.

l2. In a package winding machine, a rail, a cam roll, a supporting bracket therefor fixedly mounted on the rail, a tension device, a supporting bracket therefor pivotally connected to the rail, a bolt carried by the rail and extending clownwardly through the tension device bracket, a nut on said bolt and a resilient means interposed between the bracket and nut, acting as a vibration dampener for the tension device, said nut being adjustable on the bolt to vary the height of the tension device with respect to the cam roll.

JOHN O. MCKEAN. 

